The authors present the Apache Airavata framework for deploying science gateways, illustrating how to request, administer, modify, and extend a basic science gateway tenant to hosted Apache Airavata middleware. We further show how to use this gateway to execute scientific software on XSEDE supercomputers and university-operated computing clusters. This tutorial builds on successful tutorials that the authors have presented at previous PEARC and Gateways conferences, including a completely online version at Gateways 2020; see https://www.youtube.com/watch?v=FhAHkOoVGh4 for a recording.
